目前在节能工作中,各用能单位在对锅炉、设备进行节能改造的同时,开始注意了对蒸汽管道的合适保温。管道的保温,以往经常被忽视,但其散热的损失却极可观,如一支100米长四英寸的蒸汽管,在输送8公斤表压的蒸汽时,如不加保温,其散热量每年可达130吨标煤,损耗是大的。现在各工厂的蒸汽 At present, in energy-saving work, each energy-using unit has begun to pay attention to the proper insulation of steam pipes while carrying out energy-saving reform of boilers and equipment. Insulation of pipes has been neglected in the past, but the loss of heat dissipation is very significant. For example, a steam pipe with a length of 100 meters and a length of 4 inches can deliver heat at a rate of 8 kilograms per year without heat preservation. 130 tons of standard coal, the loss is large. Now steam of each factory